Carex heliophila Mackenzie. Section: [26bbb] Section 39 Acrocystis. Plains Sedge. Phen: Apr-Jun. Hab: Dry to mesic upland forests, sandy, loamy, or loess prairies. Dist: ON west to BC, south to MI, IN, IL, MO, OK, NM, and WA.

Origin/Endemic status: Native

Synonymy: = GrPl, Il, Mackenzie (1931-1935); = Carex inops ssp. heliophila – FNA23, K3, K4, Mi, Mo1; = Carex pensylvanica var. digyna Boeckeler – C

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Heliophily: 8